I believe everyone holding, or still investing in, BTC should be really careful now that the futures instrument is available. You only have to listen to our Steemit father Dan Larimer to realise that there could be some serious harm done in this space from now on.

If half of the BTC mining pools are controlled by big interest parties, they can now control profits they can make in both directions. This is a no-lose situation for them, and a big problem for everyone else who's betting on price appreciation.

Like Greg says, I don't want to see anyone get hurt. There's bad people out there panning bad things....